Unitary support bracket



FIG. 1 is a front perspective view of an ornamental design for a unitary support bracket;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the figures, that are immediately adjacent to the shaded areas, and define unshaded regions, represents the bounds of the claimed design, while all other broken lines are directed to environment and are for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a unitary support bracket, as shown and described. 